509675060738c04bac197d7914eb3ec90da8246910466f7597440e1fef194320

Analysis

max time kernel
140s
max time network
137s
platform
windows10_x64
resource
win10
submitted
13-07-2020 20:00

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General

Target

SecuriteInfo.com.DOC.Kryptik.Q.10203.xls
Size

308KB
MD5

ad17abb0af05e823197e08b483a27af7
SHA1

0636bcb12bf307d0ff0df6bcd30907c68944f3f9
SHA256

509675060738c04bac197d7914eb3ec90da8246910466f7597440e1fef194320
SHA512

6aa29983e223f8ad0be20762dc63497e124eb272237981d5a50f34b33cb9ec786f765615c9c45deedb638adc5b0ee8ebe35444373c90d01ca0bd73a04e614926

Score

10^/10

Malware Config

Signatures

Suspicious use of SetWindowsHookEx 14 IoCs

pid	Process
3392	EXCEL.EXE
3392	EXCEL.EXE
3392	EXCEL.EXE
3392	EXCEL.EXE
3392	EXCEL.EXE
3392	EXCEL.EXE
3392	EXCEL.EXE
3392	EXCEL.EXE
3392	EXCEL.EXE
3392	EXCEL.EXE
3392	EXCEL.EXE
3392	EXCEL.EXE
3392	EXCEL.EXE
3392	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
3392	EXCEL.EXE

Process spawned unexpected child process 1 IoCs

This typically indicates the parent process was compromised via an exploit or macro.

description	pid	pid_target	Process	procid_target
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	900	3392	rundll32.exe	66

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 3392 wrote to memory of 900	3392	EXCEL.EXE	71
PID 3392 wrote to memory of 900	3392	EXCEL.EXE	71

Checks processor information in registry 2 TTPs 3 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	EXCEL.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	EXCEL.EXE

Enumerates system info in registry 2 TTPs 3 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	EXCEL.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	EXCEL.EXE

Enumerates connected drives 3 TTPs

Query Registry
T1012

Peripheral Device Discovery
T1120

System Information Discovery
T1082

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.DOC.Kryptik.Q.10203.xls"
1⤵
- Suspicious use of SetWindowsHookEx
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of WriteProcessMemory
- Checks processor information in registry
- Enumerates system info in registry
PID:3392
- C:\Windows\System32\rundll32.exe
  "C:\Windows\System32\rundll32.exe" C:\WbMFNqE\DTXZRqG\fytiOXY.dll,DllRegisterServer
  2⤵
  - Process spawned unexpected child process
  PID:900

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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